public static void AddCustomer(
string id,
string companyName,
string contactName,
string contactTitle,
string address,
string city,
string region,
string postalCode,
string country,
string phone,
string fax)
{
using (NorthwindEntities northwindEntities = new NorthwindEntities())
{
Customer newCustomer = new Customer()
{
CustomerID = id,
CompanyName = companyName,
ContactName = contactName,
ContactTitle = contactTitle,
Address = address,
City = city,
Region = region,
PostalCode = postalCode,
Country = country,
Phone = phone,
Fax = fax
};
northwindEntities.Customers.Add(newCustomer);
northwindEntities.SaveChanges();
}
}
public static void ModifyCustomer(
string id,
string company,
string name,
string title,
string address,
string city,
string region,
string code,
string country,
string phone,
string fax)
{
var db = new NorthwindEntities();
using (db)
{
var newCustomer = new Customer
{
CustomerID = id,
CompanyName = company,
ContactName = name,
ContactTitle = title,
Address = address,
City = city,
Region = region,
PostalCode = code,
Country = country,
Phone = phone,
Fax = fax
};
var forRemoval = db.Customers.Find(id);
if (forRemoval != null)
{
db.Customers.Remove(forRemoval);
db.Customers.Add(newCustomer);
db.SaveChanges();
}
}
}
// Task 02.
// Create a DAO class with static methods which provide functionality
// for inserting, modifying and deleting customers. Write a testing class.
public static string InsertCustomer(string id, string companyName, string contactName = null, string contactTitle = null,
string address = null, string city = null, string region = null, string postalCode = null,
string country = null, string phoneNumber = null, string faxNumber = null)
{
Customer newCustomer = new Customer()
{
CustomerID = id,
CompanyName = companyName,
ContactName = contactName,
ContactTitle = contactTitle,
Address = address,
City = city,
Region = region,
PostalCode = postalCode,
Country = country,
Phone = phoneNumber,
Fax = faxNumber
};
NorthwindEntities context = new NorthwindEntities();
// if the new customer does not exist in the Databases
// we add it
if (context.Customers.Find(id) == null)
{
context.Customers.Add(newCustomer);
context.SaveChanges();
return newCustomer.CustomerID;
}
return "The customer already exists in the Databases";
}
/// <summary>
/// Initializes a new instance of the <see cref="CustomerUpdatedEvent" /> class
/// </summary>
/// <param name="customer">The <see cref="Customer" /> which the event relates to</param>
public CustomerUpdatedEvent(Customer customer)
: base(string.Format("Customer: '{0}' was updated.", customer.Name), "Northwind.Web", WebEventCodes.WebExtendedBase + 100)
{
}
public static void InsertNewCustomer(
string id,
string company,
string name = null,
string title = null,
string address = null,
string city = null,
string region = null,
string code = null,
string country = null,
string phone = null,
string fax = null)
{
var db = new NorthwindEntities();
using (db)
{
var newcustomer = new Customer
{
CustomerID = id,
CompanyName = company,
ContactName = name,
ContactTitle = title,
Address = address,
City = city,
Region = region,
PostalCode = code,
Country = country,
Phone = phone,
Fax = fax
};
db.Customers.Add(newcustomer);
db.SaveChanges();
}
}
